1851 Great Exhibition: Official Catalogue: Class X.: William Hughes
401. HUGHES, WILLIAM, Governor of the Blind Asylum, Manchester — Inventor.
Registered portable typograph. A new mechanical contrivance for the use of the blind.
By the aid of this instrument persons who can read the common embossed Roman letters (even of double the ordinary size) may communicate, by letter, after a few minutes' instruction. This typograph is calculated to give, at pleasure, any letter or figure in the eighth part of an inch; and, if required, a blind person may with ease put sixty-four distinct letters within the space of a square inch. The typograph is applicable to many other purposes, such as printing uniform labels for museums, etc.
The typograph, a similar instrument, constructed for embossing, or printing in relief.